fix(python): regex injection not working for concatenated strings (#8197)

Co-authored-by: Riley Bruins <ribru17@hotmail.com>

tests/query/highlights/python/regex.py

@@ -0,0 +1,19 @@
+import re
+
+re_test = re.compile(r"^(?P<year>\d{4}) (?P<day>\d) \w\s{,3}$")
+#                                    ^ @string.regexp
+re_test = re.compile(
+    # comment
+    # ^ @comment
+    r"^(?P<year>\d{4}){1}"
+    # ^ @string.regexp
+    # comment
+    # ^ @comment
+    r"(?P<day>\d) \w\s{,3}"
+    # ^ @string.regexp
+    # comment
+    # ^ @comment
+)
+# interpolation
+print("foo %s bar %d" % ("arg1", 2))
+#          ^ @character

tests/query/highlights/starlark/test.bzl

@@ -0,0 +1,11 @@
+# split
+# ^ @comment
+assert_eq('foo bar'.split(' '), ['foo', 'bar'])
+# ^ @keyword
+#        ^ @punctuation.bracket
+#          ^ @string
+#                  ^ @punctuation.delimiter
+assert_eq('foo bar foo'.rsplit(' ', 1), ['foo bar', 'foo'])
+#                                   ^ @number
+assert_eq("foo %s bar %d" % ("arg1", 2), "foo arg1 bar 2")
+#              ^ @character

tests/query/injections/python/test.py

@@ -0,0 +1,18 @@
+import re
+
+re_test = re.compile(r"^(?P<year>\d{4}) (?P<day>\d) \w\s{,3}$")
+#                                    ^ @regex
+re_test = re.compile(
+    # comment
+    # ^ @comment
+    r"^(?P<year>\d{4}) "
+    # comment
+    # ^ @comment
+    r"(?P<day>\d) \w\s{,3}$"
+    # ^ @regex
+    # comment
+    # comment
+    # ^ @comment
+)
+print("foo %s bar %d" % ("arg1", 2))
+#          ^ @printf

tests/query/injections/starlark/test.bzl

@@ -0,0 +1,5 @@
+# split
+# ^ @comment
+assert_eq('foo bar'.split(' '), ['foo', 'bar'])
+assert_eq("foo %s bar %d" % ("arg1", 2), "foo arg1 bar 2")
+#              ^ @printf